PI-KINKS IN A PARAMETRICALLY DRIVEN SINE-GORDON CHAIN

被引：19

作者：

KIVSHAR, YS

GRONBECHJENSEN, N

SAMUELSEN, MR

机构：

[1] STANFORD UNIV,DEPT APPL PHYS,STANFORD,CA 94305

[2] TECH UNIV DENMARK,PHYS LAB 1,DK-2800 LYNGBY,DENMARK

来源：

PHYSICAL REVIEW B | 1992年 / 45卷 / 14期

关键词：

D O I：

10.1103/PhysRevB.45.7789

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We consider the sine-Gordon chain driven by a high-frequency parametric force in the presence of loss. Using an analytical approach based on the method of averaging in fast oscillations, we predict that such a parametric force may support propagation of pi-kinks, which are unstable in the standard sine-Gordon model. The steady-state velocity of the pi-kinks is calculated, and the analytical results are in good agreement with direct numerical simulations.

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页码：7789 / 7794

页数：6

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